Mineral beryl, a beryllium aluminium cyclosilicate with the chemical formula Be3Al26. The hexagonal crystals of beryl may be very small or range to several meters in size.
Silicate minerals, mineral, substance
Say hello to Evi
Evi is our best selling mobile app that can answer questions about books, music, films, conversions, history, people, places and much more.
To experience the full power of Evi you can download her app for free on iOS, Android and Kindle Fire.